Add gravity overload to the Splice method.

[dlemstra]

Discussed in #1880

^{Originally posted by whugemann August 11, 2025}
What is the Magick.NET equivalent to
magick Input.jpg -gravity northeast -splice 30x30 Output
which draws a 30 pixel border above and right to the Input image.
As far as I can see, there is no overloading of Splice that respects gravity.
Or do I just have to choose another way of progamming this?

[whugemann]

I have just tested it with the new overloaded version, and the result of
image.Splice(new MagickGeometry("50x30"), Gravity.Northeast);
differs from that of
magick Input.jpg -gravity northeast -splice 30x30 Output.jpg
The same holds for all other Gravity values (except for 'Northwest'):
Instead of just adding a border, it really splices the image.

[dlemstra]

I suspect that ImageMagick is doing something extra then before executing the internal splice method. I will take a look at this.

[dlemstra]

Found what was causing the difference and I just pushed a patch to fix that. This fix will become available in the next release. It might take a while before that release will happen. But because you are a sponsor I can publish a new release earlier if that would help you.

[whugemann]

Thanks for your offer, but I can wait for the official release. I have a VBScript doing exactly what I need (by calling the IM command line tools in a separat process ;-), which I am trying to convert into a C# console app. I can thus work on with the suboptimal version of Splice and just switch to the new release when it's officially released.